| Patent application number | Description | Published |
|---|
| 20080217869 | Self-tightening drill chuck - A drill chuck has a chuck body, a jaw holder element rotatable on the body and formed with a plurality of angularly spaced guides, and a sleeve element surrounding the holder element and body. Jaws in the guides can be shifted in the guides forward and together on rotation of the holder element in a tightening direction relative to the body and oppositely on rotation of the holder element relative to the body in an opposite loosening direction. Interengaging formations on the sleeve element and on the body limit relative angular movement of the sleeve element on the body between a pair of angularly offset end positions. An annular array of teeth rotationally fixed to the sleeve element can be engaged by a pawl angularly fixed on the holder element. A release ring rotatable the body rearward of the sleeve is rotationally coupled to one of the elements. | 09-11-2008 |
| 20090058019 | Drill Chuck - The invention relates to a clamping drill chuck comprising a chuck body ( | 03-05-2009 |
| 20100127464 | Drill Chuck - The invention relates to a drill chuck having a chuck body ( | 05-27-2010 |
| 20100207336 | RE-TIGHTENING DRILL CHUCK - The invention relates to a re-tightening drill chuck with a chuck body ( | 08-19-2010 |
| 20100295257 | DRILL CHUCK - The invention relates to a drill chuck with means for connecting a chuck body ( | 11-25-2010 |
| 20120169017 | COLLET CHUCK - The invention relates to a collet chuck ( | 07-05-2012 |
| 20120175849 | DRILL - The invention relates to a drilling device comprising a drilling machine ( | 07-12-2012 |
| 20120205879 | DRILL CHUCK - A chuck has a body rotatable about a body axis and having an axially forwardly open central threaded hole and a tightening assembly rotatable about the axis on the chuck body and formed with a plurality of angularly spaced guides each having a face extending at an angle substantially greater than 20° to the body axis. Respective jaws are shiftable along the guide faces between radial outer positions and radial inner positions. A pusher angularly coupled to the jaws and to the tightening assembly is threaded into the hole of the body such that rotation of the assembly on the body in a tightening direction screws the pusher axially forwardly in the chuck body and shifts the jaws axially forward and radially inward on the respective guide faces and opposite rotation in a loosening direction shifts the jaws axially rearward and radially outward on the respective guide faces. | 08-16-2012 |
